/Engine/Source/Runtime/UMG/Public/Components/ExpandableArea.h
class UExpandableArea : public [UWidget](API\Runtime\UMG\Components\UWidget), public [INamedSlotInterface](API\Runtime\UMG\Components\INamedSlotInterface)
TObjectPtr<UWi...
BodyContent
TObjectPtr<UWi...
HeaderContent
TSharedPtr<SEx...
MyExpandableArea
FOnExpandableAr...
OnExpansionChanged
A bindable delegate for the IsChecked.